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Alcoholysis of W2(NMe2)6 with excess n-propanol in hexane yields the tetranuclear cluster, W4(OPrn, I. Reduction of I with two equivalents of Li2COT in THF gives a small yield of Li2W2(OPrn)8. Single crystals were isolated by cooling the product mixture in DME and were shown to be [Li2W2(OPrn)8(DME)]2, II, which consists of a unique “dimer of dimers” structure. In this reaction sequence, W416+ cluster...
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